Aug 2020 – Sep 2023 · 3 yrs 1 mo · London, England, United Kingdom · On-site

• Tech Lead in Meta’s AI Innovation team focusing on building modern recommendation systems for Facebook & Instagram Reels and Feed Ranking usecases.
• Developed and implemented user-understanding technologies and ML models to address key challenges in reel ranking and candidate retrieval.
• Created social interaction graph (∼3B nodes and ∼300B edges), trained and experimented with different architectures of GNNs (GIN, GAT etc.) to understand user behavior and leveraged transfer learning to improve recommendations.
• Experienced in recommendations stack (candidate retrieval & ranking), training and shipping deep learning models (GNN etc.), data pipelines, offline and online evaluations.
• Worked with research intern to leverage representation learning to solve cold start user problem in Recommendation Systems. Published paper to demonstrate that its possible to tackle cold-start problem without meta-learning techniques
• Led a complex cross function heavy ads project for Facebook’s ad surfaces. The scope of the change included 6 teams and 20 ad surfaces. The breaking change in the 12 graph-APIs was impacting ∼100k external developers.

Jul 2017 – Aug 2020 · 3 yrs 1 mo · Bengaluru Area, India

• Leveraged machine learning capabilities to predict customer anxiety in the event of delayed order delivery, and initiate proactive actions to improve customer experience.
• Led a team responsible for the post-order customer experience, including the order confirmation and order details APIs (scale of ∼15k peak QPS)

May 2015 – Jul 2017 · 2 yrs 2 mos · Bengaluru Area, India

• Developed an ML classification model for a data-discovery software system for discovering information in data, as well as finding relationships among multiple databases with up to 90%+ accuracy.
• Contributed to the rapid prototyping, conceptualization, and development of ToFrom, a travel platform that allows users to search, book, and pay for flights and hotels. Was responsible for the the end-to-end development of flights module.

Dec 2013 – May 2015 · 1 yr 5 mos · Gurgaon, India

Jun 2011 – Dec 2013 · 2 yrs 6 mos · Pune Area, India